The National Rugby League's leading medical officer has called for supplements to be banned from the sport.
In the wake of the scandal that engulfed the code this year, the game's governing body this week moved to tighten regulations in regard to supplement use.
But the game's chief medical officer Ron Muratore says the NRL has not gone far enough and has called for the controversial aids to be prohibited.
Muratore says he had floated his proposal with the NRL but it was unlikely it would take hold.
Under the new guidelines all clubs are required to form a supplement committee that oversees the distribution of supplements, provide the NRL with a list of approved supplements and maintain a register of use.
The new rules are in response to the Australian Sport Anti-Doping Authority's ongoing investigation into Cronulla's 2011 supplements program and queries into other NRL clubs.
